CN213252085U

CN213252085U - Disposable sterile syringe

Info

Publication number: CN213252085U
Application number: CN202021787286.XU
Authority: CN
Inventors: 鲍文卿
Original assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Current assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-05-25
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a disposable sterile syringe, including the injection barrel, the scale has evenly been laid to the surface of injection barrel, the inboard intermediate position of injection barrel is close to the rear end and installs the separation piece, two sets of pole annular have been seted up to the right-hand member surface symmetry of separation piece, the surface of separation piece is close to the right-hand member and has set firmly closed water leather collar, the left end surface of separation piece has set firmly the screw thread column cap. This syringe can effectively keep apart the inner space of injection barrel with the external air, inside the bacterium got into injection barrel when avoiding unsealing the use, really accomplishes the effect of aseptic injection for the push rod is located the inside stability and the atress performance of injection barrel better, thereby for medical personnel's steady injection medicament facilitates, can not change medical personnel's operation custom, has also reached aseptic result of use when providing convenience.

Description

Disposable sterile syringe

Technical Field

The utility model relates to the technical field of medical aseptic injection, in particular to a disposable aseptic syringe.

Background

Syringes are a common medical device; mainly using a needle to extract or inject gas or liquid; syringes may also be used for medical devices, containers, scientific instruments such as in some chromatography, through rubber septa for injection; the appearance of syringes is an epoch-making revolution in the field of medical devices and the process of needle extraction or injection of gas or liquid is called injection;

most injectors in the market can not isolate the inner space of an injection cylinder from the outside air, bacteria can not enter the injection cylinder when unsealing and using can not be avoided, the effect of aseptic injection can not be really achieved, stability and stress of a push rod located inside the injection cylinder are poor, and stable injection of medicaments can not be carried out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disposable aseptic syringe to solve the syringe on the market that proposes in the above-mentioned background art and can not keep apart the inner space and the outside air of injection barrel mostly, inside the bacterium gets into the injection barrel when can't avoiding unsealing the use, can not really accomplish the effect of aseptic injection, the push rod is located the inside stability and the atress nature of injection barrel relatively poor, can not carry out the problem of steady injection medicament.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a disposable sterile syringe, includes the injection barrel, the scale has evenly been laid to the surface of injection barrel, the inboard intermediate position of injection barrel installs the separation piece near the rear end, two sets of pole annular have been seted up to the right-hand member surface symmetry of separation piece, the surface of separation piece is close to the right-hand member and has set firmly closed water leather collar, the left end surface of separation piece has set firmly the screw thread column cap.

Preferably, the front end surface of the injection barrel body is fixedly provided with a probe head, the front end of the probe head is provided with an injection needle sleeve, push rods are arranged on two sides of the interior of the injection barrel body, a push plate sheet is fixedly arranged on the left end surface of each push rod, an inner containing cavity is formed in the middle of the interior of the injection barrel body, a rubber piston is connected to the left end surface of each push rod, and a rubber sleeve ring is sleeved on the outer surface of each rubber piston.

Preferably, a probe is fixedly arranged in the middle of the front end surface of the probe head, and an injection needle sleeve is sleeved with the probe through the probe.

Preferably, the blocking sheet is matched with the inner cavity through a threaded column cap and is installed with the injection cylinder body in a threaded mode, and the water-closing leather ring is made of elastic rubber materials.

Preferably, the push rod is matched with the inner cavity through the blocking piece, the rubber piston and the inner cavity and is installed with the injection cylinder in a sliding mode, the push rod penetrates through the threaded column head through the rod ring groove to be fixedly arranged with the rubber piston, and the surface of the front end of the rubber piston is fixedly provided with a protrusion.

Preferably, the rubber piston is tightly attached to the injection cylinder body through the matching of the rubber sleeve ring and the inner cavity, and the barrier sheet is tightly attached to the injection cylinder body through the matching of the water-closing rubber ring and the inner cavity.

Preferably, the blocking sheet is arranged in parallel with the rubber piston through a push rod.

Compared with the prior art, the beneficial effects of the utility model are that: the syringe is provided with the blocking piece, the inner containing cavity is effectively isolated from the external air under the threaded installation and matching of the threaded column head and the injection cylinder body, the inner space of the injection cylinder body is effectively isolated from the external air through the close fitting of the water-closing leather ring and the inner containing cavity, bacteria are prevented from entering the injection cylinder body when the syringe is unsealed and used, and the effect of aseptic injection is really achieved;

this syringe is provided with ejector pad piece and scale, through the extrusion ejector pad piece, makes the push rod drive rubber piston, realizes the injection of liquid medicine, and rethread pull-back ejector pad piece can realize the absorption of liquid medicine with the principle, makes preparation in advance for the liquid medicine injection, and the push rod then passes through the pole annular and accomplishes the push-and-pull function in the injection barrel inboard, and above-mentioned operation and application method are the same with traditional operation, consequently can not change medical personnel's operation custom, has also reached aseptic result of use when providing convenience.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the injection cylinder and the blocking plate of the present invention;

FIG. 3 is a schematic structural view of the middle-closed water leather ring and the threaded column cap of the present invention;

fig. 4 is a schematic view of a partial structure of the present invention.

In the figure: 1. an injection cylinder; 2. calibration; 3. a probe head; 4. an injection needle sleeve; 5. a barrier sheet; 6. a push rod; 7. pushing the plate sheet; 8. an inner cavity; 9. a rod ring groove; 10. closing the water leather ring; 11. a threaded stud; 12. a rubber piston; 13. and (6) sleeving a rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a disposable sterile syringe comprises an injection barrel body 1, scales 2 are uniformly distributed on the outer surface of the injection barrel body 1, a probe head 3 is fixedly arranged on the front end surface of the injection barrel body 1, an injection needle sleeve 4 is arranged at the front end of the probe head 3, a probe is fixedly arranged in the middle of the front end surface of the probe head 3, the injection needle sleeve 4 is sleeved with the probe head 3 through the probe, the injection needle sleeve 4 is inserted into a medicine bottle through the probe head 3, a push plate 7 is pulled outwards to suck liquid medicine into an inner cavity 8, and the injection needle sleeve 4 is sleeved with the probe to protect the probe;

a blocking sheet 5 is arranged at the middle position of the inner side of the injection cylinder body 1 close to the rear end, push rods 6 are arranged on two sides of the inner part of the injection cylinder body 1, a push plate sheet 7 is fixedly arranged on the surface of the left end of each push rod 6, an inner containing cavity 8 is arranged at the middle position of the inner part of the injection cylinder body 1, each blocking sheet 5 is in threaded installation with the injection cylinder body 1 through the matching of a threaded column head 11 and the inner containing cavity 8, each push rod 6 is in sliding installation with the injection cylinder body 1 through the matching of the blocking sheet 5, a rubber piston 12 and the inner containing cavity 8, wherein the push rod 6 penetrates through the threaded column head 11 through a rod ring groove 9 to be fixedly arranged with the rubber piston 12, the blocking sheet 5 is in tight fit with the injection cylinder body 1 through the matching of a closed water leather ring 10 and the inner containing cavity 8, the blocking sheet 5 is arranged in parallel with the rubber piston 12 through the push rod, the water-closing leather ring 10 is tightly attached to the inner cavity 8, so that the inner space of the injection cylinder 1 is effectively isolated from the outside air, bacteria are prevented from entering the injection cylinder 1 when the injection cylinder is unsealed for use, and the sterile injection effect is really achieved;

two sets of pole annular 9 have been seted up to the right-hand member surface symmetry of separation piece 5, the surface of separation piece 5 is close to the right-hand member and has set firmly closed water leather collar 10, the left end surface of separation piece 5 has set firmly screw thread column cap 11, the left end surface of push rod 6 is connected with rubber piston 12, the surface cover of rubber piston 12 is equipped with cover rubber ring 13, it makes to close water leather collar 10 to adopt elastic rubber material, rubber piston 12's front end surface has set firmly the arch, rubber piston 12 closely laminates with injection cylinder 1 through cover rubber ring 13 and the cooperation of interior appearance chamber 8, secondly, push rod 6 closely cooperates with interior chamber 8 through separation piece 5, and rubber piston 12 is under cover rubber ring 13 and the closely laminating of interior appearance chamber 8, make push rod 6 be located 1 inside stability of injection cylinder and atress performance better, thereby make the steady injection medicament of medical personnel provide convenience.

The working principle is as follows: for the injector, firstly, the inner containing cavity 8 is effectively isolated from the external air by the barrier sheet 5 arranged on the injector in threaded installation and matching with the injection cylinder 1 through the threaded column head 11, and then the inner space of the injection cylinder 1 is effectively isolated from the external air through the close fitting of the water-closing leather ring 10 and the inner containing cavity 8, so that bacteria are prevented from entering the injection cylinder 1 when the injector is unsealed for use, and the sterile injection effect is really realized; then the probe head 3 is inserted into the medicine bottle, the push plate piece 7 is pulled outwards to suck the medicine liquid into the inner cavity 8, and the injection needle sleeve 4 and the probe are sleeved and installed to protect the probe; finally, the syringe is provided with the push plate piece 7 and the scales 2, the push plate piece 7 is extruded, the push rod 6 drives the rubber piston 12, the injection of the liquid medicine is realized, the push plate piece 7 is pulled back, the absorption of the liquid medicine can be realized in the same way, the preparation is made in advance for the injection of the liquid medicine, the push rod 6 completes the push-pull function at the inner side of the injection cylinder body 1 through the rod ring groove 9, the operation and the use method are the same as the traditional operation, the operation habit of medical workers cannot be changed, and the aseptic use effect is achieved while the convenience is provided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A disposable sterile syringe comprising an injection barrel (1), characterized in that: scale (2) have evenly been laid to the surface of injection barrel (1), the inboard intermediate position of injection barrel (1) is close to the rear end and installs separation piece (5), two sets of pole annular (9) have been seted up to the right-hand member surface symmetry of separation piece (5), the surface of separation piece (5) is close to the right-hand member and has set firmly closed water leather collar (10), the left end surface of separation piece (5) has set firmly screw thread column cap (11).

2. A disposable sterile syringe according to claim 1, characterized in that: the utility model discloses a syringe, including syringe barrel (1), the front end surface of syringe barrel (1) has set firmly probe head (3), the front end of probe head (3) is provided with injection needle cover (4), the inside both sides of syringe barrel (1) all are provided with push rod (6), the left end surface of push rod (6) has set firmly push plate piece (7), interior appearance chamber (8) have been seted up to the inside intermediate position of syringe barrel (1), the left end surface of push rod (6) is connected with rubber piston (12), the surface cover of rubber piston (12) is equipped with cover rubber ring (13).

3. A disposable sterile syringe according to claim 2, characterized in that: the middle position of the front end surface of the probe head (3) is fixedly provided with a probe, and the injection needle sleeve (4) is sleeved with the probe head (3) through the probe.

4. A disposable sterile syringe according to claim 1, characterized in that: the blocking piece (5) is matched with the inner cavity (8) through a threaded column cap (11) and is in threaded installation with the injection cylinder body (1), and the water-closing leather ring (10) is made of elastic rubber materials.

5. A disposable sterile syringe according to claim 2, characterized in that: push rod (6) pass through separation piece (5), rubber piston (12) and interior cavity (8) cooperation and injection barrel body (1) slidable mounting, wherein, push rod (6) run through screw column cap (11) through pole annular (9) and rubber piston (12) fixed the setting, and the front end surface of rubber piston (12) sets firmly the arch.

6. A disposable sterile syringe according to claim 2, characterized in that: the rubber piston (12) is tightly attached to the injection cylinder body (1) through the matching of the rubber sleeve ring (13) and the inner cavity (8), and the barrier sheet (5) is tightly attached to the injection cylinder body (1) through the matching of the water closing leather ring (10) and the inner cavity (8).

7. A disposable sterile syringe according to claim 1, characterized in that: the blocking sheet (5) is arranged in parallel with the rubber piston (12) through the push rod (6).